US981899A - Pneumatic hammer. - Google Patents

Pneumatic hammer. Download PDF

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Publication number
US981899A
US981899A US1908431612A US981899A US 981899 A US981899 A US 981899A US 1908431612 A US1908431612 A US 1908431612A US 981899 A US981899 A US 981899A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
cylinder
bushing
hammer
notches
pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Albert H Taylor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ingersoll-Rand Co
Original Assignee
Ingersoll-Rand Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D17/00Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084Rotating chucks or sockets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D2250/00General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/105Exchangeable tool components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D2250/00General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/301Torque transmission means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D2250/00General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/351Use of pins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D2250/00General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/371Use of springs
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00Chucks or sockets
    • Y10T279/17Socket type
    • Y10T279/17042Lost motion
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00Chucks or sockets
    • Y10T279/17Socket type
    • Y10T279/17923Transverse pin
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/85Knob-attaching devices
    • Y10T292/858Screw
    • Y10T292/861Guards

Description

Patented Jan. 17, 1911 R e 2 W M A. H. 'TAYLOR.

PNEUMATIC HAMMER.

APPLIOATION IILEI) MAY s, 1908.

-' gaff UNITED PATEIEIT @FIFIQE.

ALBERT I-I. TAYLOR, OF EASTON, PENNSYLVANIA, ASSIGNOR 'IO INGERSOLL-RAND COIVIPA'NY, O'E'NEW' YORK, N. Y., A CORPORATION OF NEVJ JERSEY.

PNEUlv'IATIC HAMMER.

senses,

Specification of Letters Patent.

Patented Jan. 1'7, 1911.

Application filed May e, 1908. Serial No. 431,612.

To all whom "it may concern:

Be it known that I, ALBERT I-I. Tnrnon, a citizen of the United States, and resident of Easton, in the county of Northampton and State of Pennsylvania, have invented a new and useful Improvement in Pneumatic Hammers, of which the following is a specification.

The object of my invention is to provide certain improvements in the construction, form and arrangement of the several parts of a pneumatic hammer, such, for instance, as a hammer drill whereby the tool holding bushing may be strongly interlocked with the tool cylinder for imparting the rotation of the cylinder to the tool; means being provided for securely holding the bushing in its interlocked position without the necessity of increasing the size of the front end of the cylinder, said means being readily removable without the use of tools, to permit the removal of the bushing and the anvil block whenever desired.

In the accompanying drawings, Figure 1 represents in longitudinal central section so much of a pneumatic drill as will give a clear understanding of my invention, Fig. 2 is a front end view of the drill, and Fig. 3 is a cross section taken in the plane of the line A-A of Fig. 1.

The hammer cylinder is denoted by 1; the hammer piston by 2 and the anvil block by 3. The bushing is interlocked with the cylinder 1 by providing the bushing with oppositely arranged lugs 5 and 6 which snugly fit within notches 7 and S in the front end of the cylinder. The body portion of the bushing extends within the bore 9 of the cylinder beyond said lugs and notches and is provided with the usual angular bore 10 for receiving the shank of the tool, the end of which presses against the anvil 3. A hole 11 extends transversely through the cylinder 1 and the body portion of the bushing 1 a distance from the lugs and notches, which hole is adapted to receive with an easy sliding fit a pin 12 for holding the bushing at in its interlocked position with the cylinder 1.

I provide a spring 13 which is fitted to snap around the cylinder 1 for closing the ends of the hole 11 to prevent the uninteir tional removal of the pin 12. In the present instance, I provide the cylinder 1 with a circumferential groove 14: for receiving the spring 13 and retaining it against longitudinal movement along the cylinder.

The stop pin 15 is provided for-preventing a sufiicient turning movement of the spring on the cylinder to expose the hole 11, which pin comprises, in the present instance, a screw inserted into the cylinder 1 with its end projecting above the bottom of the circumferential groove 14.

In the construction such as herein described it will be seen that the bushing may be securely interlocked with the cylinder by the lugs of the bushing fitting in the notches in the cylinder thus permitting the use of a small pin for simply holding the bushing in its interlocked position.

When it is desired to remove the anvil block, the spring 13 is removed thus permitting the removal of the pin 12. The bushing may then be withdrawn which will allow the anvil block to be dropped out of the cylinder.

The construction herein shown will not necessitate the increase in the size of the front end of the cylinder thus permitting the tool to work in more cramped positions than where an enlarged front end of the cylinder is provided or where attachments to the end of said cylinder are used for holding the bushing in place.

What I claim is 1. In a pneumatic hammer, a hammer cylinder having notches in its front end, a bushing provided with outwardly extended lugs fitted within said notches for interlocking the bushing with the cylinder, the body portion of the bushing extending into the hammer cylinder beyond the said lugs and notches and a manually removable pin engaging the body portion of the bushing and the cyliuder for holding the bushing in its interlocked position.

2. In a pneumatic hammer, a hammer cylinder having notches in its front end, a bushing provided with outwardly extended lugs fitted within said notches for interlocking the bushing with the cylinder, the body portion of the bushing extending into the hammer cylinder beyond the said lugs and notches, and a manually removable pin engaging the body portion of the bushing and the cylinder for holding the bushing in its SET f3 981,899

interlocked position, and a spring embrac- 1 locked position, a spring embracing the cyling the cylinder arranged in position to inder arranged in position to hold the pin hold the pin in place. i in place, and a stop for preventing the spring 8. In a pneumatic hammer, a hammer cylfrom turning on the cylinder sufficiently to inder having notches in its front end, a bushexpose the pin.

ing provided With outwardly extended lugs g In testimony, that I claim the foregoing fitted Within said notches for interlocking as my invention, I have signed my name in the bushing With the cylinder, the body pop 1 presence of tWo Witnesses, this 30th day of tion of the bushing extending into the hammer cylinder beyond the said lugs and notches, a manually removable pin engaging the body portion of the bushing and the cylinder for holding the bushing in its inter- April 1908.

ALBERT H. TAYLOR. W itnesses RUssnLL H. WILI-IELM, WARD RAYMOND.

US981899A 1908-05-08 1908-05-08 Pneumatic hammer. Expired - Lifetime US981899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US981899A US981899A (en) 1908-05-08 1908-05-08 Pneumatic hammer.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US981899A US981899A (en) 1908-05-08 1908-05-08 Pneumatic hammer.

Publications (1)

Publication Number Publication Date
US981899A true US981899A (en) 1911-01-17

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Application Number Title Priority Date Filing Date
US981899A Expired - Lifetime US981899A (en) 1908-05-08 1908-05-08 Pneumatic hammer.

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726533A (en) * 1971-01-22 1973-04-10 Milwaukee Electric Tool Corp Spring biased coupling for tool and chuck
US4231580A (en) * 1978-08-07 1980-11-04 Henri Emonet Lost motion tool retainer
US5788430A (en) * 1995-03-17 1998-08-04 Hawera Probst Gmbh Drilling tool for rotary percussion drilling
US6213230B1 (en) * 1997-11-06 2001-04-10 Hawera Probst Gmbh Drilling tool especially for the rotary percussion drilling of preferably rock
US20070151318A1 (en) * 2006-01-05 2007-07-05 Fwu Kuang Enterprises Co., Ltd. Workpiece holding clamp mechanism of a forging machine
US20070205605A1 (en) * 2006-03-02 2007-09-06 I-Tek Metal Mfg. Co., Ltd. Bolt assembly for lock
US20080150302A1 (en) * 2006-03-02 2008-06-26 Chung-Liang Lin Bolt Assembly for Lock
US20140376847A1 (en) * 2013-06-21 2014-12-25 Caterpillar Global Mining Equipment Llc Bearing assembly for rock drill
US20160271778A1 (en) * 2015-03-21 2016-09-22 Chih Kuan Hsieh Fixing Structure for Cylinder

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726533A (en) * 1971-01-22 1973-04-10 Milwaukee Electric Tool Corp Spring biased coupling for tool and chuck
US4231580A (en) * 1978-08-07 1980-11-04 Henri Emonet Lost motion tool retainer
US5788430A (en) * 1995-03-17 1998-08-04 Hawera Probst Gmbh Drilling tool for rotary percussion drilling
US6213230B1 (en) * 1997-11-06 2001-04-10 Hawera Probst Gmbh Drilling tool especially for the rotary percussion drilling of preferably rock
US20070151318A1 (en) * 2006-01-05 2007-07-05 Fwu Kuang Enterprises Co., Ltd. Workpiece holding clamp mechanism of a forging machine
US20070205605A1 (en) * 2006-03-02 2007-09-06 I-Tek Metal Mfg. Co., Ltd. Bolt assembly for lock
US20080150302A1 (en) * 2006-03-02 2008-06-26 Chung-Liang Lin Bolt Assembly for Lock
US20140376847A1 (en) * 2013-06-21 2014-12-25 Caterpillar Global Mining Equipment Llc Bearing assembly for rock drill
US9086091B2 (en) * 2013-06-21 2015-07-21 Caterpillar Global Mining Equipment Llc Bearing assembly for rock drill
US20160271778A1 (en) * 2015-03-21 2016-09-22 Chih Kuan Hsieh Fixing Structure for Cylinder

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